WSDL MEPs do not have conditionality whereas the WS-Choreography language 
should support conditionality (in its MEPs).  The WSDL group is beginning to 
look at the target resource as well, to make MEPs richer.  This raised the 
obvious issue of the scope of WSD increasing upwards.  If this group can 
provide tools and language for this area then it would take the pressure off 
the WSDL group to spread upwards.  We need to decide on our lower bound and 
there is not consensus on precisely how to express this at present